Magnetic tape control system circuit for selectively blocking th

Details Magnetic tape control system circuit for selectively blocking th Magnetic tape control system circuit for selectively blocking th

1974-05-28

1976-07-27

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data in specific format

G11B 509

Patent

active

039720691

ABSTRACT:
A circuit for use with a control system in which interleaved pairs of records and parity characters following each interleaved pair of records are recorded on magnetic tape, with each of the interleaved pairs of records having at its ends a stop-command-forward character and a stop-command-reverse character, the circuit comprising gate means for passing read data from a magnetic tape reader to a utilization device, means for identifying the stop-command-reverse character and the stop-command-forward character, and a flip-flop for disabling the gate means in response to identification of one of the stop-command-characters at the end of a record and for enabling the gate means in response to identification of a different stop-command character at the beginning of a next record.

REFERENCES:
patent: 3519988 (1970-07-01), Grossman

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